Loading and unloading machines and apparatus, namely, cranes, derricks, unloaders, truck lifts, automated conveyors for industrial environments, conveyors for use in clean room environments, automated conveyors for articles stored in a warehouse, and storage racks and bins associated therewith, belts for conveyors, winches, windlasses, capstans, chain blocks, hoists, elevators, dumb waiters, elevator chains, elevator belts, escalators, power jacks, rack and pinion jacks, unloading hoppers, wagon lifts, pneumatic transporters, air cushion devices for moving loads, lifts other than ski-lifts, lift belts, loading ramps, and moving sidewalks; Printing presses; Bookbinding machines; Packaging and wrapping machines; Plastic processing machines; Semiconductor manufacturing machines; Stone working machines; Sewing machines; Glassware manufacturing machines; Shoe making machines; Leather tanning machines; Tobacco processing machines; Adhesive tape dispensing machines; Starters for motors and engines; AC and DC electric motors, not for land vehicles, and parts thereof; Alternators; DC electric generators; Lawnmowers; Dish washing machines; Electric wax-polishing machines; Electric laundry washing machines; Vacuum cleaners; Dynamo brushes; Electric food blenders for household use; Electrically operated curtain drawers; Power operated potter's wheels; Pneumatic and electric painting machines; Mechanical vehicle washing installations; Waste compacting machines; Waste crushing machines; Automatic warehousing systems comprising racks and transfer means; Conveyors; Material sorting machines for loading and unloading; Power-driven rotary material storage/retrieval installations; Power-driven sliding material storage/retrieval installations; Power-driven mobile storage/retrieval installations; Industrial robots for use in palletizing materials; Pallet washing machines; Car mat washing machines; and Integrated circuit manufacturing machines